<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<select name="">
			<option value="">--请选择--</option>
			<optgroup label="河南省">
				<option value ="郑州市">郑州市</option>
				<option value ="洛阳市">洛阳市</option>
				<option value ="信阳市">信阳市</option>
			</optgroup>
			<optgroup label="湖北省">
				<option value ="武汉市">武汉市</option>
				<option value ="恩施自治区">恩施自治区</option>
			</optgroup>
		</select>
		
		<form action="" method="post">
			
			<input type="email" value="" placeholder="提示文本" maxlength="12"/>
			
			<textarea rows="10" cols="30" maxlength="200" required readonly>文本域内容</textarea>
			
			<label><input type="radio" name="sex" id="" value="" />男</label>
			<label><input type="radio" name="sex" id="" value="" />女</label>
			<br/>
			
			<label><input type="checkbox" name="fav" id="" value="" />自行车</label>
			<label><input type="checkbox" name="fav" id="" value="" />火车</label>
			<label><input type="checkbox" name="fav" id="" value="" />飞机</label>
			<label><input type="checkbox" name="fav" id="" value="" />轮船</label>
		</form>
	</body>
</html>
